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Paper Abstract and Keywords
Presentation 2009-07-23 14:25
Image- based refocusing by 3D filtering
Akira Kubota (Chuo Univ.), Kazuya Kodama (NII), Yoshinori Hatori (Tokyo Tech.) IE2009-50 MVE2009-25
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a novel spatial-invariant filtering method for rendering focus effects without ghosting artifacts from undersampled light fields. The presented method does not require any scene analysis such as
depth estimation and feature matching. First, we generate a set of images focused on multiple depths by using the conventional synthetic aperture method and treat it as a 3D image. Second we convert it to the ghost-free 3D
image. This paper shows this conversion can be achieved simply by a 3D filtering in the frequency domain. The proposed filter can also produce depth-of-field effects.
Keyword (in Japanese) (See Japanese page) 
(in English) computational photography / digital refocus / multiview image / space-invariant filter / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 148, IE2009-50, pp. 7-11, July 2009.
Paper # IE2009-50 
Date of Issue 2009-07-16 (IE, MVE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF IE2009-50 MVE2009-25

Conference Information
Committee MVE IE  
Conference Date 2009-07-23 - 2009-07-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Matsue Terrsa 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IE 
Conference Code 2009-07-MVE-IE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Image- based refocusing by 3D filtering 
Sub Title (in English)  
Keyword(1) computational photography  
Keyword(2) digital refocus  
Keyword(3) multiview image  
Keyword(4) space-invariant filter  
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1st Author's Name Akira Kubota  
1st Author's Affiliation Chuo University (Chuo Univ.)
2nd Author's Name Kazuya Kodama  
2nd Author's Affiliation National Institute of Informatics (NII)
3rd Author's Name Yoshinori Hatori  
3rd Author's Affiliation Tokyo Instutute of Technology (Tokyo Tech.)
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Speaker Author-1 
Date Time 2009-07-23 14:25:00 
Presentation Time 25 minutes 
Registration for IE 
Paper # IE2009-50, MVE2009-25 
Volume (vol) vol.109 
Number (no) no.148(IE), no.149(MVE) 
Page pp.7-11 
#Pages 5 
Date of Issue 2009-07-16 (IE, MVE) 

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